Redneck son Jedidiah returns from college for the summer He hops on a plane and arrives at the airport where his dad is waiting on him. Daddy: Hey, Jed! Good to have ya back in town. Jedidiah: Glad to be back, daddy. Daddy: So tell me. What did ya learn there at college? Jed racks his brain and decides on his memory. Jedidiah: Pi r^2 Daddy: What are they teaching you in college? Pie are round!